XS2200flame-Graphite furnace integrated machine atomic absorption spectrophotometer

Atomic absorption spectrophotometer, as an important quantitative analysis method for conventional and trace metal and metalloid elements, is widely used in various fields such as metallurgy, petroleum, chemical industry, medicine, geology, environmental protection, commodity inspection, disease control, agriculture, life sciences, etc.
1. 6 lamp sockets are lit or preheated simultaneously
2. The flow controller and gas path control valve are both Sino foreign joint venture products
3. Total reflection dual beam optical path system
4. Stable and reliable flame atomization system
5. Secure monitoring system
6. Powerful data processing system

optical system
Wavelength range: 185 nm-910 nm
Wavelength repeatability:< 0.2nm
Wavelength accuracy:< ±0.2nm
Spectral bandwidth: Five levels of automatic selection: 0.1, 0.2, 0.4, 1.0, and 2.0nm
Baseline drift: static<0.002A/30min; Dynamic:< 0.0025 A/30min
Monochromator: Optimized aberration eliminating C-T type monochromator, automatic peak searching and scanning
Grating: 1800/nm, large-area planar grating
Photometer (WYS2200): High flux total reflection dual beam splitting system, with automatic switching between single beam and dual beam modes
Detector: High sensitivity, wide spectral range photomultiplier tube
Resolution: Split manganese double lines (279.5nm and 279.8nm) with spectral bandwidth of 0.2nm and valley peak energy ratio<25%
Background correction system: When the background signal of the deuterium lamp is 1A, the background subtraction ability is>40 times
Rotating lamp holder: 6 lamp positions automatically switch lamp holders, automatic alignment, and can preheat and light up six lamps at the same time

Flame atomization system
Characteristic concentration (CU): 0.02ug/ml/1%
Detection limit (CU): 0.002ug/ml
Precision: RSD<0.25%
Burner: 100/50mm titanium metal burner, air-cooled premixed type
Spray: high-efficiency glass, all plastic, stainless steel atomizer
Physical and chemical room: Explosion proof and corrosion-resistant material physical and chemical room
Adjustment system: Fully automatic PC control and adjustment of gas and auxiliary gas flow rate, burner position and angle, and automatic optimization, automatic ignition, and automatic recognition of combustion head type; Fast hydrogenation device switching
Safety protection: equipped with a complete set of safety interlock system, multiple pressure monitoring, automatic safety protection function, acetylene leakage alarm, shutdown system (automatic monitoring of combustion head type, flame status, water seal, gas pressure, atomization system pressure, waste liquid bottle liquid level, etc.), automatic interlock and shutdown in case of abnormality or power outage

Graphite Furnace Atomization System
Temperature range: around room temperature -3000 ℃, with two modes of light control and power heating, and equipped with temperature self correction function
Temperature control accuracy: accuracy ≤ 1%
Heating rate: 3000 ℃/S
Heating method: Vertical heating
Characteristic quantity (Cd):<0.15pg
Detection limit (Cd):<0.25pg
Precision (Cd): ≤ 2%
Safety protection: There is an indication of argon gas under pressure, insufficient cooling water flow, overheating, overcurrent alarm, and automatic protection function

Analysis method
Measurement methods: air acetylene flame method, hydride generator atomic absorption method, oxygen enriched air acetylene flame method, graphite furnace method
Concentration calculation method: Standard curve method (1-3 curves), automatic fitting, standard addition method, repeated measurement frequency of 1-99 times, repeated measurement calculation of average value, automatic provision of standard deviation and relative standard deviation
Software and data processing: High intelligence software, fully automatic instrument and accessory control, capable of automatic optimization (combustion head height, optimal gas/auxiliary gas flow ratio for flame, optimal ashing and atomization temperature for graphite furnace, etc.); Automatic dilution; Mouse operation, automatic setting of menu data and calibration methods
Result printing: parameter printing, data result printing, graphic printing, summary report, direct saving of detection data, can be exported directly in Excel format for editing
Software environment: Windows 98/2000/XP